원문정보
보안공학연구지원센터(IJMUE)
International Journal of Multimedia and Ubiquitous Engineering
Vol.10 No.1
2015.01
pp.19-32
피인용수 : 0건 (자료제공 : 네이버학술정보)
초록
영어
There are many ways to improve unreliable datagram protocol (UDP) for video streaming applications. One of them is by using negative acknowledgement (NACK). This paper proposed UDP enhancement by using both NACK-based retransmission and medium access (MAC) layer support for uplink video streaming application in WiMAX networks. Mathematical models and analysis are presented to compare protocol performances in relation to delay and packet loss. The analysis is then confirmed through simulations using the ns-2 simulator. The results show that by reducing the number of NACK packets within one video frame and utilizing MAC support could reduce effective loss rate and delay significantly.
목차
Abstract
1. Introduction
2. NACK-based Protocol
3. The Proposed Protocol
4. Model, Assumptions and Analysis
4.1. Application Layer Model
4.2. Transport layer Model
4.3. WiMAX Network Model
4.4. Packet Loss
4.5. Packet Delay
4.6. Result of the Analysis
5. Simulation Evaluation
5.1. Simulation Setup
5.2. The Impact of MAC Cross-layer
5.3. Performance Comparisons
5.4. Protocol Performance Over Various Schedulers
6. Conclusion
References
1. Introduction
2. NACK-based Protocol
3. The Proposed Protocol
4. Model, Assumptions and Analysis
4.1. Application Layer Model
4.2. Transport layer Model
4.3. WiMAX Network Model
4.4. Packet Loss
4.5. Packet Delay
4.6. Result of the Analysis
5. Simulation Evaluation
5.1. Simulation Setup
5.2. The Impact of MAC Cross-layer
5.3. Performance Comparisons
5.4. Protocol Performance Over Various Schedulers
6. Conclusion
References
저자정보
참고문헌
자료제공 : 네이버학술정보